Rigger hook



Jury 1, 1930. ,MW'SHANE 1,769,37

RIGGER Hoox Filed Jan. 16, 1930 Patented July l, 193@ MICHEAL tr;Mesniinn, ory SEATTLE', rWe'sl'qrrlvef'ioivr BIGGER Hooi;v

Application led January 16,;1930. `Serial No.4 421,239. l

The present invention relates'to hooks and more particularlyto hooksadapted for use in hoisting apparatus or the like.

An object of this invention is to provide a safety hook which maybe'used yin combi-V a predetermined amount ofplayorl rotatal bility uponthe hook so that' When the article held thereby swings laterally.' oftheY hoisting apparatus the locking member will not readily be released. y

A further objectV` of this invention is to provide a hook ofthecharacter described ,U which is readily and cheaply manufactured andwhichV will be of suliicientstrength to f n Y l is l preferably flushwith ythe'.:outer `faee "of thehook loandthe annular.. .member15"is4safely hold the desired load to be lifted.

The above and variousrother objects and; advantages of this inventionwill in part be,

I described in and in part be yunderstood from 'e the followingdetailed. description 'of theV v present preferred embodiment, thesamebeingillustrated in the accompanying 'drawmg, wherein:

Figure 1 is a detail side elevationy of a" device constructedAaccording-'to .the 'pre 11,] of Figure l; and

ferred embodiment of this invention; Y Figure 2`is a longitudinalsection 'partly in detail taken substantially on 'the line 2-2 Figure 3is a detail top plan view of the link member. i f A Referring tothedrawing' wherein like numerals of reference designate correspond ingparts throughout the several vievvsthe numeral 10 designates generally ahool; member Which is'provided With a bifurcated upper end portion 11,

The upper end portion 11 is provide-d with an aperture 12 therethroughfor rockably revprovided withl a substantially annular poi-j-e tion 15which `looselyengages Within the bif f furcated member 11. The annularmemberf or thelilre infwhich casethesecuring memanA arc softhatV thelug. or,y stud- 21 Will'be ceiving a ringmember 13. A yloclringigaiv Yor paWl-member lllvis adapted tobe loosely ymounted in the bifurcatedupper end portion 11v of the hookv member-$10.r`

Themovable jaw member 14h-is preferably 15 is provided with an axialopening` 16 for receiving the ring memberml whichl .is 55 adapted to beloosely mountedtherein.

' v The lockingmember'lis preferablyprovided with atapering por:angularly-einclined lower end portion 17; Which is adaptedr tobeara'g-ainst the peintedfornpvvardly yeX-.o` tendingv portion 18 .ofthe hook 10s@ that when thev locking. member 4llis svvungin- Wardly theangularportion' 11.7 ofthe locking member will securely lock thexdesiredelementen' the1hook. r: i l* k i 'The outer face of-'tlie lockingpreferably provided v vith: anV outstanding flange or segmental portionv 19.wl'iich .is adaptedto loosely engage' about thebifurcated .rounded`portion 20 of th'eupperl `end 1l f vThe locking member 111 is providedWithip anupstandiiig lug .211 lA.linkuneinber 22 is alsobe' securedtothe Iring-13 lby Welding'V Y `8() ber 23 maybe eliminated. y i .Y Ifvdesired, the rear half ofthe link 22 may be constructed .substantiallystraight and the'forwa'rdhalf thereofvbe'formed on loosely ypositionedtherebetvveeng, The ring 13 isy preferably provided'- With al pair ofcollarsv 24. which. are positioneduponv *the f opposite` sidesA of the.bifurcated' upper end portion v11 and are adapted to 'preventjthe 9uring 13 from lateral movement on the hook the link member 22 the ring 13is given a In the use of this device the hook member 10 may engage thedesired hoisting cable or the like, the pawl or locking jaw member 14Vbeing swung outwardly so as to permit the cable to be inserted inthehook.

The ring member 13 may be swung forwardly so that the link 22 willengage the lug 21 and thereby cause the locking mem ber 14 to swing onits pivot and engage` against the hook portion 18. It is obvious thatthe ring member 13 not only serves the member carried by said hookmember, a'lug upstanding from said movable locking `member, a ringrockably mounted onsaid hook, a plurality of collars carriedr by saidring and engaging said hook, and a link member mounted on said ring andengagingl said lug therebetween whereby toV swing said movable lockingmember cooperatively with c the swinging of said ring.

In testimony whereofl hereunto aliix my signature y J. MCSHANE.

purpose of providing an eXtended pivotal member for the movable jaw butalso pro.`

vides means byk which the* hook 10 may be hoisted or otherwise securedto conventional hoisting apparatus. The ring 13 during the assembly ofthe component parts of the hook 7 i will of course be split, but theopen portions of the ring when the assembly has been completed will beassembled or otherwise secured together so as to provide a solid ring.

While the material is being hoisted it re- Y quently occurs that thecable will be swung horizontally and through the provision of thedetails of construction and design ofthe above specifically describedembodiment of l the invention without departing'rfrom the spiritVthereof, such changes and Ymodiica- I Y tions being restricted onlybythe scopefof` f the followingclaims': Y

What is claimed is` Y 1. A hook of the characterdescribedcomfy Y prisinga hook member, a movable jaw member secured to said hook, and a ringrockably carried by said hook, lsaid ringalso providing aV pivotalmember` for lsaid movable jaw. I

2.l A hook Aof' the character deseribedcom-l prising abifurcate'd hookmember, a rockable jaw member carried by said hook, an upstanding lugmounted on said rockable jawV member, a ringl rockably carried said yhook, and lug engaging means carried' by said ring whereby tocooperatively; move said jaw with the movement of said ring. Y i

3. A hook of the character describedcoinprising a hook portion, lockingmeansrockably carried by said hook, a lug upstanding l from said lockingmeans, la ring `rockably mounted on said hook, and link means se.-

Y cured to saidY ringvrand engaging said 'lug therebetween.

4. A hook of the character described colm-V prisingA a hook member, amovable locking y no

